Calculate the speed with which a gas escapes from a container?

[Rodrigoson6]

Hi guys, (I apologize if I'm wrong here, and I apologize for my bad English but I'm Italian): if I have two container, where: container "A" (there is "He" with a pressure of 2 atm); container "B" (remember "O2" with a pressure of 1 atm). 1) you tell me which formula to use to calculate the speed with which the helium flows out from the container "A" ?? 2) if the two containers had the same pressure? P. S. : In fact I have to build a container (with helium inside). There will be a valve that will release the helium from the container. I have to calculate the mass flow rate (volumetric flow * specific gravity helium). But I do not know the speed, that 's why I am asking this. thanks so much

 

[Greg Bernhardt]

Thanks for the post! Sorry you aren't generating responses at the moment. Do you have any further information, come to any new conclusions or is it possible to reword the post?